Selbstfertile Diploide aus Polyploiden selbststeriler Petunien; Die Duplikation desS-Locus |
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| Authors: | Käthe Breuer |
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| Institution: | (1) Botanischen Institut der Universität Köln, Gyrhofstr. 17, Köln-Lindenthal |
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| Abstract: | Summary Crosses between self-incompatible triploidPetunia hybrida-plants and selfincompatible diploid ones produce self-compatible trisomics.Self-pollinations of the self-compatible trisomics give a great number of self-compatible diploid individuals which are constant self-compatible in further generations.It is supposed that self-compatibility is caused by a duplication of theS-locus. According to the results the duplication as well of identical as of not identicalS-Alleles must cause the break-down of the inhibition-reaction.Further it is supposed that the influence of the alleles in a duplicated locus both in pollen tubes and in styles is not sufficient to eliminate the inhibition-effect of normalS-genes which are presented in the reaction partner.
Dissertation der Mathematisch-naturwissenschaftlichen Fakultät der Universität zu Köln. |
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